Ventilator.



T. LEE. VENTILATOR. APPLICATION FILED MAR.19, 190a.

Patented Jan. 19, 1909;

DE T 255555- THOMAS LEE, OF HOME CITY, OHIO.

\ Z VENTILATO B.

Specification of Letters Patent, Application filed March 19, 1908. Serial No. 422,991.

Batented Ian; 1g, 189g),

To all whom it may concern;

.Be it known that I, THOMAS Line, a citizen of the United States, and residing at Home.

City, Hamilton county, State of Ohio, have :5 invented certain new and useful Improvements in Ventilators; and Ido declare the following to be a clear, full, and exact de- :scription of the invention, attention being called to the accompanying drawing, with the reference characters marked thereon, which forms also a art of this specification.

This invention re ates to ventilators generally used on roofs and where the i are rovided with means to control an regu ate their action.

The-invention consists of certain im 'rovements in the construction of the genera parts and of the operatin members and manipulating means of suci ventilators, all as described and claimed hereinafter and as illustrated in the accompanying drawing, H1

- which Figure 1, shows in a vertical cross-section my improved ventilator in position. Fig. 2 shows the same in a similar view, partly in elevation and partly in section, view and sec tion being taken on a plane at right angles to the view shown in the preceding figure. Fig.

' 3, shows part of the under-side of a device ordamper whereby the action of the ventilator eiscontrolled and as the same appears in Fig. 1, the view being a section taken substantially below said damper. Fig. 4, is a similar view taken at a lower plane and shows part vof an underside view of the ventilator as itappears in Fig. 1, it being more particularly t e lower end of the flue. Fig. 5, in side-elevation and Fig. 6, in top-view show in detail .a modified construction of certain lockin means.

In t e drawing, 8 indicates the roof of a building or inclosure to be ventilated. An

o ening is provided therein where the vent1 ator 18 to be applied. This latter consists substantially of a tubular flue 9 of a hei ht and diameter appropriate to suit particu ar conditions. ,opening' in the roof, a collar 10 being usually inter osed upon which the flue is slipped and whic collar is provided with a flange 11 for its attachment to the roof. A conical hood 12 to keep the weather out is provided above the flue. It is of larger diameter than this latter and s aced from the up er end of the same. Disc arge from the ventilator takes place between the upper edge of the flue and This flue is mounted above the the lower edge of this ho od. To prevent interference with the action of the ventilator by wind-currents, a wind-shie'ld 13 'isp'rovided which is substantially n ailmilar band, sustainedopposite the S ate between flue and hood and spaced from 'oth. Br ckets 14 are provided to supportthe hood above the flue and also to sustain shield 13 oppd site them. For such purpose these'brackets are shaped as shown, their lower ends t be ng attached to the outside of the flue and'their upper ends I) are turned and'under hood 12 to which they are corine'ct'edfddetween their ends these bracketsare bent wardly as shown at c to permit connection thereat of the windsh eld. Rlve'ts Qr bolts '15 serve at all these points as attaching diums, I

Above the upper end of the flue 9 and below hood 12 there is a damper or cap 1, mo'vably supported, so that it may occupy either a raised position as shown'in 1,"Qr allowered 'position'as'shown'in Fig.2, whereby in the latter case the flue becomes closed and the action of the ventilator ceases; This cap isI'also of conical shape so that, when .ralsed as shown. in Fig.' 1, it may move well up into the space below hood 12 andits diameter is such that its lower edge ente ndslall around beyond the upper edge of the flue. At this lower edge of the cap there is-a vertical flange 17 which, when the cap is in its lowest position as shown in Fig. 2, is adapted to seat upon an inclined rim 18 whichis attached to the upper edge of'the flue and 'extends outwardly and downwardly therefrom.

When the cap is thus seated upon this rim, no part of it comes in contact with the'flue and any moisture, due to condensation,

which forms on the underside of theca'p is thus divertedto the outside of the flpeand drains upon said rim from which it may drip onto the roof. For manipulating cap I provide a set of toggle-levers 19, connected at their upper end to a bar 21, the ends of which are bent to form flanges '22 whereby the same is attached to the underside of the cap. .The connection to this bar is by a pin or bolt 23, which is rigidly attached to said bar and terms also the mov-- able pivot of the toggle-lever set, links 24of the set serving to The ,connection at the lower end is to a bar 25 which extends across the flue and attaches at its ends, which are bent as shown at 26, to the inside of the flue-wall. By 10- connect it to this pivot.

eating the various parts accordingly, theseends 26 and the lower ends a of two of the brackets 14 may be brought together in a manner that one bolt-connection may serve for the purpose, bolts 15 thereat being so used. A pin or bolt 27 is mounted on this bar and constitutes thefixed pivot for the toggle-levens et, the lowermost pair of these levers being mounted thereon. Q

g It will now be seen that by means of a suitable mani ulating or ull-device, attached tov the ower end of t e toggle-leverset b means of interposed links 28, cap 16 may ereadily manipulated. Strictly speaking, this manipulation involves merely a ralsing of the cap, since it normally seeks to occupy a seated position induced by its weig t and by the weight of the togglelevers which tend to close u See Fig. 2 and note also dotted lines in ig. 1.

Asa means to hold cap 16 in a manner to move in pro er direction with respect to the upper en of the flue and to and from its seat upon rim 18, a rigidly connected, upright'guide-bar 29 is rovided for the purose, substantially int c center of the ventiator. This guide is connected at its upper end to the underside of hood 12 and de ends from there down into the flue, the cap eing erforated to clear it. For the urpose of its connection to hood 12, it is split longitudinally at its upper end, the separated iportions being turned in opposite directions so as to form flanges 31 as shown, which permit application of bolts for connection. Below, 1t is steadied by connection to bar 25, bolt 27, which constitutes the fixed pivot for the toggle-lever-set, serving also for the purpose of this connection. The cap in part is guided by the erforation in it through which this guidear extends in addition to which a bearing 32 is provided, attached to bar 21 and closely fitted around the guidebar (see Fi 3).

Cap 16 has, as before stated, a normal tendency to occupy its lowest or seated osition in which the ventilator is closed. t is therefore necessary to manipulate the same for lifting only. This is done by action on the lower end of the toggle-lever-set where a chain 33 is attached to the ends of links 28 thereat and where they come together. After the cap is raised it is necessary to hold it so against its normal tendency to seat. For such purpose the chain is arranged to pass through a slot 34, provided in a bracket 35. A stop 36 is provided on the chain larger than it and so located thereon that when the toggle-levers are extended in operative position and have raised the cap, it is Fig. 1, and where it is held because it is too large to pass through the slot thereat. At one end the slot is enlarged as shown at 37. \Vhen the cap is to be-lowered and dropped upon its seat to close the ventilator, chain 33 is released by being pulled first to one side as shown in dotted lines in Fig. 2 and until stop 36 is below the enlargedopening 37, through which it is free to pass upwardly as soon as release of chain 33 permits the weight of the dropping cap to exert itself. Similar manipulation takes place when the cap is to be raised again the chain being pulled through enlarged opening 37 until stop 36 is below bracket 35, after which the chain is drawn sidewise into slot 34. To facilitate the passage of stop 36 through this opening, means are provided to guide it into the same. As shown in Figs. 1 and 2, this is accomplished by shaping the stop conical. In Figs. 5 and 6, a funnel-shaped guide 38 is provided around opening 37, on the upper side of bracket, which guides the ball-shaped stolp in pro er direction.

I aving escribed my invention, I claim as new:

a immediately below bracket 35 as shown in,

In a ventilator, the combination of a flue, v

for this cap attached at its upper end to the hood from which it depends vertically down into theflue, its lower end being bent up to form an angular bracket, mechanism to raise this cap, a chain to mani ulate this mechanlsm and a stop on this 0 ain adapted to engage the bracket'mentioned when the ca is raised, thereby holding the same in suc positlon.

In testimony whereof, I hereunto aliix my signature in the presence of two witnesses. THOMAS LEE.

Witnesses:

ROBERT E. LEE, O. SPENGEL. 

